Indigofera
Encyclopedia
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Flowering plant
The flowering plants , also known as Angiospermae or Magnoliophyta, are the most diverse group of land plants. Angiosperms are seed-producing plants like the gymnosperms and can be distinguished from the gymnosperms by a series of synapomorphies...
s belonging to the family Fabaceae
Fabaceae
The Fabaceae or Leguminosae, commonly known as the legume, pea, or bean family, is a large and economically important family of flowering plants. The group is the third largest land plant family, behind only the Orchidaceae and Asteraceae, with 730 genera and over 19,400 species...
.
The species are mostly shrub
Shrub
A shrub or bush is distinguished from a tree by its multiple stems and shorter height, usually under 5–6 m tall. A large number of plants may become either shrubs or trees, depending on the growing conditions they experience...
s, though some are herbaceous
Herbaceous plant
A herbaceous plant is a plant that has leaves and stems that die down at the end of the growing season to the soil level. They have no persistent woody stem above ground...
, and a few can become small tree
Tree
A tree is a perennial woody plant. It is most often defined as a woody plant that has many secondary branches supported clear of the ground on a single main stem or trunk with clear apical dominance. A minimum height specification at maturity is cited by some authors, varying from 3 m to...
s up to 5 – tall. Most are dry-season or winter deciduous
Deciduous
Deciduous means "falling off at maturity" or "tending to fall off", and is typically used in reference to trees or shrubs that lose their leaves seasonally, and to the shedding of other plant structures such as petals after flowering or fruit when ripe...
. The leaves
Leaf
A leaf is an organ of a vascular plant, as defined in botanical terms, and in particular in plant morphology. Foliage is a mass noun that refers to leaves as a feature of plants....
are pinnate with 5–31 leaflets and the terminal leaflet present. Leaf sizes vary from 3 –. The flower
Flower
A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants . The biological function of a flower is to effect reproduction, usually by providing a mechanism for the union of sperm with eggs...
s are small, produced on raceme
Raceme
A raceme is a type of inflorescence that is unbranched and indeterminate and bears pedicellate flowers — flowers having short floral stalks called pedicels — along the axis. In botany, axis means a shoot, in this case one bearing the flowers. In a raceme, the oldest flowers are borne...
s 2 – long.
Indigofera species are used as food plants by the larva
Larva
A larva is a distinct juvenile form many animals undergo before metamorphosis into adults. Animals with indirect development such as insects, amphibians, or cnidarians typically have a larval phase of their life cycle...
e of some Lepidoptera
Lepidoptera
Lepidoptera is a large order of insects that includes moths and butterflies . It is one of the most widespread and widely recognizable insect orders in the world, encompassing moths and the three superfamilies of butterflies, skipper butterflies, and moth-butterflies...
species including Turnip Moth
Turnip Moth
The Turnip Moth is a moth of the family Noctuidae. It is a common European species, but it is also found in Asia and Africa, very likely having been spread by the international trade in nursery stock...
.
Selected species
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Indigofera marmorata Indigofera marmorata is a species of legume in the Fabaceae family.It is found only in Yemen.Its natural habitats are subtropical or tropical dry forests and subtropical or tropical dry shrubland.-References:... Indigofera nephrocarpoides Indigofera nephrocarpoides is a species of legume in the Fabaceae family.It is found only in Yemen.Its natural habitat is subtropical or tropical dry forests.-References:* Miller, A. 2004. . Downloaded on 19 July 2007.... Indigofera rothii Indigofera rothii is a species of legume in the Fabaceae family.It is found only in Ethiopia.-Source:* World Conservation Monitoring Centre 1998. . Downloaded on 19 July 2007.... Indigofera sokotrana Indigofera sokotrana is a species of legume in the Fabaceae family.It is found only in Yemen.Its natural habitat is subtropical or tropical dry forests.-References:* Miller, A. 2004. . Downloaded on 19 July 2007.... Indigofera tinctoria Indigofera tinctoria bears the common name True indigo. The plant was one of the original sources of indigo dye. It has been naturalized to tropical and temperate Asia, as well as parts of Africa, but its native habitat is unknown since it has been in cultivation worldwide for many centuries. Today... |
Uses
Several of them and especially Indigofera tinctoriaIndigofera tinctoria
Indigofera tinctoria bears the common name True indigo. The plant was one of the original sources of indigo dye. It has been naturalized to tropical and temperate Asia, as well as parts of Africa, but its native habitat is unknown since it has been in cultivation worldwide for many centuries. Today...
and Indigofera suffruticosa
Añil
Indigofera suffruticosa, commonly known as Anil, Guatemalan indigo, Small-leaved indigo , West Indian indigo, and Wild indigo, is a flowering plant in the pea family, Fabaceae...
are used to produce the dye
Dye
A dye is a colored substance that has an affinity to the substrate to which it is being applied. The dye is generally applied in an aqueous solution, and requires a mordant to improve the fastness of the dye on the fiber....
indigo
Indigo dye
Indigo dye is an organic compound with a distinctive blue color . Historically, indigo was a natural dye extracted from plants, and this process was important economically because blue dyes were once rare. Nearly all indigo dye produced today — several thousand tons each year — is synthetic...
. Colonial planters in the Caribbean
Caribbean
The Caribbean is a crescent-shaped group of islands more than 2,000 miles long separating the Gulf of Mexico and the Caribbean Sea, to the west and south, from the Atlantic Ocean, to the east and north...
grew indigo and transported its cultivation when they settled in the colony of South Carolina
South Carolina
South Carolina is a state in the Deep South of the United States that borders Georgia to the south, North Carolina to the north, and the Atlantic Ocean to the east. Originally part of the Province of Carolina, the Province of South Carolina was one of the 13 colonies that declared independence...
. Exports of the crop did not expand until the mid-to late 18th century. When Eliza Lucas Pinckney and enslaved Africans
Atlantic slave trade
The Atlantic slave trade, also known as the trans-atlantic slave trade, refers to the trade in slaves that took place across the Atlantic ocean from the sixteenth through to the nineteenth centuries...
successfully cultivated new strains near Charleston
Charleston, South Carolina
Charleston is the second largest city in the U.S. state of South Carolina. It was made the county seat of Charleston County in 1901 when Charleston County was founded. The city's original name was Charles Towne in 1670, and it moved to its present location from a location on the west bank of the...
it became the second most important cash crop
Cash crop
In agriculture, a cash crop is a crop which is grown for profit.The term is used to differentiate from subsistence crops, which are those fed to the producer's own livestock or grown as food for the producer's family...
in the colony (after rice
Rice
Rice is the seed of the monocot plants Oryza sativa or Oryza glaberrima . As a cereal grain, it is the most important staple food for a large part of the world's human population, especially in East Asia, Southeast Asia, South Asia, the Middle East, and the West Indies...
) before the American Revolution
American Revolution
The American Revolution was the political upheaval during the last half of the 18th century in which thirteen colonies in North America joined together to break free from the British Empire, combining to become the United States of America...
. It comprised more than one-third the value of all exports.
The chemical aniline
Aniline
Aniline, phenylamine or aminobenzene is an organic compound with the formula C6H5NH2. Consisting of a phenyl group attached to an amino group, aniline is the prototypical aromatic amine. Being a precursor to many industrial chemicals, its main use is in the manufacture of precursors to polyurethane...
, from which many important dyes are derived, was first synthesized from I. suffruticosa (syn. I. anil, whence the name aniline).
Several species of this group are used to alleviate pain. The herbs are generally regarded as an analgesic
Analgesic
An analgesic is any member of the group of drugs used to relieve pain . The word analgesic derives from Greek an- and algos ....
with anti-inflammatory
Anti-inflammatory
Anti-inflammatory refers to the property of a substance or treatment that reduces inflammation. Anti-inflammatory drugs make up about half of analgesics, remedying pain by reducing inflammation as opposed to opioids, which affect the central nervous system....
activity, rather than an anodyne
Anodyne
In medicine before the 20th century, an anodyne was a medicine that was believed to relieve or soothe pain by lessening the sensitivity of the brain or nervous system In medicine before the 20th century, an anodyne was a medicine that was believed to relieve or soothe pain by lessening the...
. Indigofera articulata Gouan (Arabic Khedaish) was used for toothache, and Indigofera oblongifolia Forsskal (Arabic "Hasr") was used as an anti-inflammatory for insect stings, snakebites, and swellings.
Indigofera suffruticosa and Indigofera aspalthoides have also been used as anti-inflammatories. A patent was granted for use of Indigofera arrecta extract to relieve ulcer
Peptic ulcer
A peptic ulcer, also known as PUD or peptic ulcer disease, is the most common ulcer of an area of the gastrointestinal tract that is usually acidic and thus extremely painful. It is defined as mucosal erosions equal to or greater than 0.5 cm...
pain.
The Maasai people of Kenya
Kenya
Kenya , officially known as the Republic of Kenya, is a country in East Africa that lies on the equator, with the Indian Ocean to its south-east...
use parts of Indigofera brevicalyx and I. swaziensis as toothbrush
Toothbrush
The toothbrush is an oral hygiene instrument used to clean the teeth and gums that consists of a head of tightly clustered bristles mounted on a handle, which facilitates the cleansing of hard-to-reach areas of the mouth. Toothpaste, which often contains fluoride, is commonly used in conjunction...
es.
In Indonesia, especially Sundanese ethnic traditionally use Indigofera tinctoria L called as "tarum" as dye for batik
Batik
Batik is a cloth that traditionally uses a manual wax-resist dyeing technique. Batik or fabrics with the traditional batik patterns are found in Indonesia, Malaysia, Japan, China, Azerbaijan, India, Sri Lanka, Egypt, Nigeria, Senegal, and Singapore.Javanese traditional batik, especially from...
. The use of tarum had faded away since Dutch colonialism introduce artificial colour.